swscale: ppc: Hide arch-specific initialization details

Also give consistent names to init functions.

1 files changed, 22 insertions, 6 deletions

diff --git a/libswscale/ppc/yuv2rgb_altivec.c b/libswscale/ppc/yuv2rgb_altivec.c
index 846a4dcfa2..74b0f18190 100644
--- a/libswscale/ppc/yuv2rgb_altivec.c
+++ b/libswscale/ppc/yuv2rgb_altivec.c
@@ -99,6 +99,8 @@
 #include "libavutil/cpu.h"
 #include "yuv2rgb_altivec.h"
 
+#if HAVE_ALTIVEC
+
 #undef PROFILE_THE_BEAST
 #undef INC_SCALING
 
@@ -528,14 +530,17 @@ static int altivec_uyvy_rgb32(SwsContext *c, const unsigned char **in,
     return srcSliceH;
 }
 
+#endif /* HAVE_ALTIVEC */
+
 /* Ok currently the acceleration routine only supports
  * inputs of widths a multiple of 16
  * and heights a multiple 2
  *
  * So we just fall back to the C codes for this.
  */
-av_cold SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
+av_cold SwsFunc ff_yuv2rgb_init_ppc(SwsContext *c)
 {
+#if HAVE_ALTIVEC
     if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
         return NULL;
 
@@ -591,20 +596,26 @@ av_cold SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
         }
         break;
     }
+#endif /* HAVE_ALTIVEC */
+
     return NULL;
 }
 
-av_cold void ff_yuv2rgb_init_tables_altivec(SwsContext *c,
-                                            const int inv_table[4],
-                                            int brightness,
-                                            int contrast,
-                                            int saturation)
+av_cold void ff_yuv2rgb_init_tables_ppc(SwsContext *c,
+                                        const int inv_table[4],
+                                        int brightness,
+                                        int contrast,
+                                        int saturation)
 {
+#if HAVE_ALTIVEC
     union {
         DECLARE_ALIGNED(16, signed short, tmp)[8];
         vector signed short vec;
     } buf;
 
+    if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
+        return;
+
     buf.tmp[0] = ((0xffffLL) * contrast >> 8) >> 9;                               // cy
     buf.tmp[1] = -256 * brightness;                                               // oy
     buf.tmp[2] =   (inv_table[0] >> 3) * (contrast >> 16) * (saturation >> 16);   // crv
@@ -620,8 +631,11 @@ av_cold void ff_yuv2rgb_init_tables_altivec(SwsContext *c,
     c->CGU    = vec_splat((vector signed short) buf.vec, 4);
     c->CGV    = vec_splat((vector signed short) buf.vec, 5);
     return;
+#endif /* HAVE_ALTIVEC */
 }
 
+#if HAVE_ALTIVEC
+
 static av_always_inline void yuv2packedX_altivec(SwsContext *c,
                                                  const int16_t *lumFilter,
                                                  const int16_t **lumSrc,
@@ -854,3 +868,5 @@ YUV2PACKEDX_WRAPPER(argb,  AV_PIX_FMT_ARGB);
 YUV2PACKEDX_WRAPPER(rgba,  AV_PIX_FMT_RGBA);
 YUV2PACKEDX_WRAPPER(rgb24, AV_PIX_FMT_RGB24);
 YUV2PACKEDX_WRAPPER(bgr24, AV_PIX_FMT_BGR24);
+
+#endif /* HAVE_ALTIVEC */